For O gauge the best ballast would have to be coarse as this has much larger stone chips than fine or medium grade...
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Trench Missionaries (x11)
Hetzer Command Version
German PanzerKampfwagen IV Ausf.D
M151A2 with TOW Missile
Mtl.Spw Sd.Kfz. 251/1 Ausf.D
Sd. Kfz. 140 Flakpanzer 38(t) Gepard
German Engineers with Goliath Demolition Vehicle
Stone/Thatched Outbuilding
Timber Outbuilding
Viking House
Quar Fidwog Specialists (x12)
1966 Ford Thunderbird Hardtop/Convertible
German Army Sturmpanzer IV Brummbär Ver.Mid
Madness of the Streets car - Dragon Wings & Nana 125 parts
A05144 Airfix Supermarine Spitfire Mk.IXe 124 parts
Agents
Civilians & Survivors Women (24)
US Navy USS Enterprise CV-6 "Battle of Midway" 80th anniversary
US Navy USS Nimitz U.S. Aircraft carrier
Market Stall (Medieval & Dark Ages)
GSX1100S Katana "Custom Tuned" - 1:12 model kit
Then and Now Spitfire Mk Vc & F-35B Lightning II 26/42 parts
Honda CB750F 'Custom Tuned' - 1:12 model kit
1/12 Suzuki RGV-1 XR89 (Pictures show painted and assembled model).
Kawasaki Ninja Zx-12R
U.S.S. Enterprise NCC-701 (TOS) 117 parts
de Havilland Chipmunk T.10/T.20 84 Parts Included
Thunderbird 2 with Thunderbird 4
The Mole (Thunderbirds) - 1:72 model kit
German Pz.Kpfw.V Panther Ausf.G
U.S. Infantry Tank Riders. Set 1 - 1:35 model kit
U.S. Infantry Tank Riders. Set 2 - 1:35 model kit
The Nautilus Submarine
Operators
Halfling Cavalry
Orc Horde
Dwarven Host
Boneblades
Dark Ages Army Builder
Civilians & Survivors (1): Men
Coftyran Chyweethl Tractor